'Tophi' definitions:

Definition of 'Tophi'

From: GCIDE
  • Tophus \To"phus\, n.; pl. Tophi. [NL.: cf. F. tophus a mineral concretion in the joint. See Toph.] [Written also tofus.]
  • 1. (Med.) One of the mineral concretions about the joints, and in other situations, occurring chiefly in gouty persons. They consist usually of urate of sodium; when occurring in the internal organs they are also composed of phosphate of calcium. [1913 Webster]
  • 2. (Min.) Calcareous tufa. [1913 Webster]